The step board consists of magnet which can produce magnetic field during swinging and vibrating.

踏板具有磁石，摆动时产生磁场能促进气血循环，保持健康。

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The step board consists of magnet which can produce magnetic field during swinging and vibrating.

踏板具有磁石，摆动时产生磁场能促进气血循环，保持健康。

youdao